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57 (LVII) — 1946-1947
L. and C. Miners' Relief Society, 259.
Lamb, Mr. A. M., Death of, 19.
Lashing Chain, Detaching, 98.
Leeds University Mining Lectures, 110.
Levelling, Error of Correction, 17.
Levelling, Surveying and, 79, 90, 104, 109, 121, 136, 148, 159, 182, 194, 208, 218, 230, 241, 256, 265, 283, 292.
Lighting Efficiency of Safety-lamps, 221.
Lime and Soda Ash Water Softening, 141.
Linen Tapes, Measuring by, 79.
Locomotive Haulage, 253.
Loose-needle Surveying, 182.
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